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| author | Andrey Konovalov <andrey.konovalov@linaro.org> | 2012-01-23 21:00:43 +0400 |
|---|---|---|
| committer | Andrey Konovalov <andrey.konovalov@linaro.org> | 2012-01-23 21:02:17 +0400 |
| commit | c2a5a3cfab76c6b1768c5f4d5ad73404c81d3767 (patch) | |
| tree | 08eff1e7126b5ef7c38ef48c4c2baef916330604 /arch/arm/mach-omap2 | |
| parent | 34e7c4f3f9e5403ef4f135394aa7e4357588fd89 (diff) | |
| download | vexpress-lsk-c2a5a3cfab76c6b1768c5f4d5ad73404c81d3767.tar.gz | |
arm: omap4: Fix omap_barriers_init for generic ioremap changes
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 12 Jan 2012 10:42:57 -0800
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Commit 73829af71fdb8655e7ba4b5a2a6612ad34a75a11
(Merge branch 'vmalloc' of git://git.linaro.org/people/nico/linux
into devel-stable) merged generic ioremap changes.
Commit 137d105d50f6e6c373c1aa759f59045e6239cf66
(ARM: OMAP4: Fix errata i688 with MPU interconnect barriers)
added a workaround for omap4.
In order for the errata to work, we now need the following
patch or else we'll get:
kernel BUG at mm/vmalloc.c:1134!
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/common.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/io.c | 5 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap4-common.c | 8 |
3 files changed, 12 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index 012bac7d56a..4e6cb2453ad 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -118,6 +118,7 @@ void omap242x_map_io(void); void omap243x_map_io(void); void omap3_map_io(void); void omap4_map_io(void); +int omap_barriers_init(void); /** * omap_test_timeout - busy-loop, testing a condition diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 65843390e7f..bd0e9a84b3b 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -282,7 +282,12 @@ void __init omapti816x_map_common_io(void) #ifdef CONFIG_ARCH_OMAP4 void __init omap44xx_map_common_io(void) { + int res; + iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc)); + res = omap_barriers_init(); + if (res) + pr_err("Barriers broken\n"); } #endif diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c index da202aa71c6..e8ef81adabb 100644 --- a/arch/arm/mach-omap2/omap4-common.c +++ b/arch/arm/mach-omap2/omap4-common.c @@ -47,7 +47,7 @@ void omap_bus_sync(void) } } -static int __init omap_barriers_init(void) +int __init omap_barriers_init(void) { struct map_desc dram_io_desc[1]; phys_addr_t paddr; @@ -77,7 +77,11 @@ static int __init omap_barriers_init(void) return 0; } -core_initcall(omap_barriers_init); +#else +int __init omap_barriers_init(void) +{ + return 0; +} #endif void __init gic_init_irq(void) |